181728105

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21673}}^1$

素因数の和:21737

約数の個数: 32

約数和(自身を含む): 320428416

約数和(自身を除く): 138700311

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385, 21673, 65019, 108365, 281749, 325095, 845247, 931939, 1408745, 2795817, 4226235, 4659695, 12115207, 13979085, 36345621, 60576035, 181728105]

約数ペア:

[(1, 181728105), (3, 60576035), (5, 36345621), (13, 13979085), (15, 12115207), (39, 4659695), (43, 4226235), (65, 2795817), (129, 1408745), (195, 931939), (215, 845247), (559, 325095), (645, 281749), (1677, 108365), (2795, 65019), (8385, 21673)]